The pressurized air supply fan is a fan that opens at 70 degrees to expel smoke from the scene in the early stages of a fire, and is forced to close at 280 degrees. A pressurized air supply fan is a fan that blows air into the escape corridor during unexpected events, which is beneficial for escape. At the same time, the air pressure in the corridor is positive, which means that the air pressure in the corridor is higher than in other places, and smoke will not seep in and cause suffocation, ensuring tranquility.

When it comes to familiar fire high-temperature smoke exhaust fans, we would like to remind users that one knowledge point they are familiar with is about the casing of fire high-temperature smoke exhaust fans. It should be noted that the centrifugal ventilation fan used in our fire high-temperature smoke exhaust system has high pressure, large flow rate, high efficiency, low noise, easy installation, and energy-saving features. Therefore, it has these tense advantages, and the advantage of its chassis cannot be ignored. Let's get to know each other in detail:

Under normal circumstances, we know that the manufacturing accuracy of the casing of the current high-temperature smoke exhaust fan for firefighting should comply with the relevant specifications. The motor support inside the casing should have sufficient strength and rigidity to withstand the dynamic load generated during operation, and its height should be connected to the motor axis and the middle of the casing uniformly. Finally, we also need to recognize that the casing of the axial flow fire-fighting high-temperature smoke exhaust fan should undergo hot-dip galvanizing treatment, and the average thickness of the hot-dip galvanizing layer should not be less than 70 μ m